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author | axis <qt-info@nokia.com> | 2010-02-26 09:05:39 (GMT) |
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committer | axis <qt-info@nokia.com> | 2010-02-26 09:05:39 (GMT) |
commit | 5e9382c018e231c5e2ef49dd8a38eaff535b9837 (patch) | |
tree | 89f13d31d5804c38999fdefd0e2aca39d305f91c /examples/network | |
parent | 11e54877f87ff97039452f117d40ec17eefbcbff (diff) | |
parent | 53e7dda038e9251ca7380d3717709764c580192e (diff) | |
download | Qt-5e9382c018e231c5e2ef49dd8a38eaff535b9837.zip Qt-5e9382c018e231c5e2ef49dd8a38eaff535b9837.tar.gz Qt-5e9382c018e231c5e2ef49dd8a38eaff535b9837.tar.bz2 |
Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt-s60-public into master-s60
Conflicts:
qmake/generators/symbian/initprojectdeploy_symbian.cpp
qmake/generators/symbian/symmake_abld.h
Diffstat (limited to 'examples/network')
-rw-r--r-- | examples/network/http/httpwindow.cpp | 129 | ||||
-rw-r--r-- | examples/network/http/httpwindow.h | 23 | ||||
-rw-r--r-- | examples/network/http/main.cpp | 1 | ||||
-rw-r--r-- | examples/network/loopback/dialog.cpp | 10 |
4 files changed, 89 insertions, 74 deletions
diff --git a/examples/network/http/httpwindow.cpp b/examples/network/http/httpwindow.cpp index 95fc82f..ec7cd33 100644 --- a/examples/network/http/httpwindow.cpp +++ b/examples/network/http/httpwindow.cpp @@ -49,9 +49,9 @@ HttpWindow::HttpWindow(QWidget *parent) : QDialog(parent) { #ifndef QT_NO_OPENSSL - urlLineEdit = new QLineEdit("https://"); + urlLineEdit = new QLineEdit("https://qt.nokia.com/"); #else - urlLineEdit = new QLineEdit("http://"); + urlLineEdit = new QLineEdit("http://qt.nokia.com/"); #endif urlLabel = new QLabel(tr("&URL:")); @@ -70,21 +70,14 @@ HttpWindow::HttpWindow(QWidget *parent) progressDialog = new QProgressDialog(this); - http = new QHttp(this); - connect(urlLineEdit, SIGNAL(textChanged(QString)), this, SLOT(enableDownloadButton())); - connect(http, SIGNAL(requestFinished(int,bool)), - this, SLOT(httpRequestFinished(int,bool))); - connect(http, SIGNAL(dataReadProgress(int,int)), - this, SLOT(updateDataReadProgress(int,int))); - connect(http, SIGNAL(responseHeaderReceived(QHttpResponseHeader)), - this, SLOT(readResponseHeader(QHttpResponseHeader))); - connect(http, SIGNAL(authenticationRequired(QString,quint16,QAuthenticator*)), - this, SLOT(slotAuthenticationRequired(QString,quint16,QAuthenticator*))); + + connect(&qnam, SIGNAL(authenticationRequired(QNetworkReply*,QAuthenticator*)), + this, SLOT(slotAuthenticationRequired(QNetworkReply*,QAuthenticator*))); #ifndef QT_NO_OPENSSL - connect(http, SIGNAL(sslErrors(QList<QSslError>)), - this, SLOT(sslErrors(QList<QSslError>))); + connect(&qnam, SIGNAL(sslErrors(QNetworkReply*,QList<QSslError>)), + this, SLOT(sslErrors(QNetworkReply*,QList<QSslError>))); #endif connect(progressDialog, SIGNAL(canceled()), this, SLOT(cancelDownload())); connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadFile())); @@ -104,9 +97,21 @@ HttpWindow::HttpWindow(QWidget *parent) urlLineEdit->setFocus(); } +void HttpWindow::startRequest(QUrl url) +{ + reply = qnam.get(QNetworkRequest(url)); + connect(reply, SIGNAL(finished()), + this, SLOT(httpFinished())); + connect(reply, SIGNAL(readyRead()), + this, SLOT(httpReadyRead())); + connect(reply, SIGNAL(downloadProgress(qint64,qint64)), + this, SLOT(updateDataReadProgress(qint64,qint64))); +} + void HttpWindow::downloadFile() { - QUrl url(urlLineEdit->text()); + url = urlLineEdit->text(); + QFileInfo fileInfo(url.path()); QString fileName = fileInfo.fileName(); if (fileName.isEmpty()) @@ -132,35 +137,26 @@ void HttpWindow::downloadFile() return; } - QHttp::ConnectionMode mode = url.scheme().toLower() == "https" ? QHttp::ConnectionModeHttps : QHttp::ConnectionModeHttp; - http->setHost(url.host(), mode, url.port() == -1 ? 0 : url.port()); - - if (!url.userName().isEmpty()) - http->setUser(url.userName(), url.password()); - - httpRequestAborted = false; - QByteArray path = QUrl::toPercentEncoding(url.path(), "!$&'()*+,;=:@/"); - if (path.isEmpty()) - path = "/"; - httpGetId = http->get(path, file); progressDialog->setWindowTitle(tr("HTTP")); progressDialog->setLabelText(tr("Downloading %1.").arg(fileName)); downloadButton->setEnabled(false); + + // schedule the request + httpRequestAborted = false; + startRequest(url); } void HttpWindow::cancelDownload() { statusLabel->setText(tr("Download canceled.")); httpRequestAborted = true; - http->abort(); + reply->abort(); downloadButton->setEnabled(true); } -void HttpWindow::httpRequestFinished(int requestId, bool error) +void HttpWindow::httpFinished() { - if (requestId != httpGetId) - return; if (httpRequestAborted) { if (file) { file->close(); @@ -168,54 +164,58 @@ void HttpWindow::httpRequestFinished(int requestId, bool error) delete file; file = 0; } - + reply->deleteLater(); progressDialog->hide(); return; } - if (requestId != httpGetId) - return; - progressDialog->hide(); + file->flush(); file->close(); - if (error) { + + QVariant redirectionTarget = reply->attribute(QNetworkRequest::RedirectionTargetAttribute); + if (reply->error()) { file->remove(); QMessageBox::information(this, tr("HTTP"), tr("Download failed: %1.") - .arg(http->errorString())); + .arg(reply->errorString())); + downloadButton->setEnabled(true); + } else if (!redirectionTarget.isNull()) { + QUrl newUrl = url.resolved(redirectionTarget.toUrl()); + if (QMessageBox::question(this, tr("HTTP"), + tr("Redirect to %1 ?").arg(newUrl.toString()), + QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) { + url = newUrl; + reply->deleteLater(); + file->open(QIODevice::WriteOnly); + file->resize(0); + startRequest(url); + return; + } } else { QString fileName = QFileInfo(QUrl(urlLineEdit->text()).path()).fileName(); statusLabel->setText(tr("Downloaded %1 to current directory.").arg(fileName)); + downloadButton->setEnabled(true); } - downloadButton->setEnabled(true); + reply->deleteLater(); + reply = 0; delete file; file = 0; } -void HttpWindow::readResponseHeader(const QHttpResponseHeader &responseHeader) +void HttpWindow::httpReadyRead() { - switch (responseHeader.statusCode()) { - case 200: // Ok - case 301: // Moved Permanently - case 302: // Found - case 303: // See Other - case 307: // Temporary Redirect - // these are not error conditions - break; - - default: - QMessageBox::information(this, tr("HTTP"), - tr("Download failed: %1.") - .arg(responseHeader.reasonPhrase())); - httpRequestAborted = true; - progressDialog->hide(); - http->abort(); - } + // this slot gets called everytime the QNetworkReply has new data. + // We read all of its new data and write it into the file. + // That way we use less RAM than when reading it at the finished() + // signal of the QNetworkReply + if (file) + file->write(reply->readAll()); } -void HttpWindow::updateDataReadProgress(int bytesRead, int totalBytes) +void HttpWindow::updateDataReadProgress(qint64 bytesRead, qint64 totalBytes) { if (httpRequestAborted) return; @@ -229,14 +229,19 @@ void HttpWindow::enableDownloadButton() downloadButton->setEnabled(!urlLineEdit->text().isEmpty()); } -void HttpWindow::slotAuthenticationRequired(const QString &hostName, quint16, QAuthenticator *authenticator) +void HttpWindow::slotAuthenticationRequired(QNetworkReply*,QAuthenticator *authenticator) { QDialog dlg; Ui::Dialog ui; ui.setupUi(&dlg); dlg.adjustSize(); - ui.siteDescription->setText(tr("%1 at %2").arg(authenticator->realm()).arg(hostName)); - + ui.siteDescription->setText(tr("%1 at %2").arg(authenticator->realm()).arg(url.host())); + + // Did the URL have information? Fill the UI + // This is only relevant if the URL-supplied credentials were wrong + ui.userEdit->setText(url.userName()); + ui.passwordEdit->setText(url.password()); + if (dlg.exec() == QDialog::Accepted) { authenticator->setUser(ui.userEdit->text()); authenticator->setPassword(ui.passwordEdit->text()); @@ -244,7 +249,7 @@ void HttpWindow::slotAuthenticationRequired(const QString &hostName, quint16, QA } #ifndef QT_NO_OPENSSL -void HttpWindow::sslErrors(const QList<QSslError> &errors) +void HttpWindow::sslErrors(QNetworkReply*,const QList<QSslError> &errors) { QString errorString; foreach (const QSslError &error, errors) { @@ -253,10 +258,10 @@ void HttpWindow::sslErrors(const QList<QSslError> &errors) errorString += error.errorString(); } - if (QMessageBox::warning(this, tr("HTTP Example"), + if (QMessageBox::warning(this, tr("HTTP"), tr("One or more SSL errors has occurred: %1").arg(errorString), QMessageBox::Ignore | QMessageBox::Abort) == QMessageBox::Ignore) { - http->ignoreSslErrors(); + reply->ignoreSslErrors(); } } #endif diff --git a/examples/network/http/httpwindow.h b/examples/network/http/httpwindow.h index 9dca8a5..83898af 100644 --- a/examples/network/http/httpwindow.h +++ b/examples/network/http/httpwindow.h @@ -43,18 +43,21 @@ #define HTTPWINDOW_H #include <QDialog> +#include <QNetworkAccessManager> +#include <QUrl> QT_BEGIN_NAMESPACE class QDialogButtonBox; class QFile; -class QHttp; -class QHttpResponseHeader; class QLabel; class QLineEdit; class QProgressDialog; class QPushButton; class QSslError; class QAuthenticator; +class QNetworkReply; + + QT_END_NAMESPACE class HttpWindow : public QDialog @@ -64,16 +67,18 @@ class HttpWindow : public QDialog public: HttpWindow(QWidget *parent = 0); + void startRequest(QUrl url); + private slots: void downloadFile(); void cancelDownload(); - void httpRequestFinished(int requestId, bool error); - void readResponseHeader(const QHttpResponseHeader &responseHeader); - void updateDataReadProgress(int bytesRead, int totalBytes); + void httpFinished(); + void httpReadyRead(); + void updateDataReadProgress(qint64 bytesRead, qint64 totalBytes); void enableDownloadButton(); - void slotAuthenticationRequired(const QString &, quint16, QAuthenticator *); + void slotAuthenticationRequired(QNetworkReply*,QAuthenticator *); #ifndef QT_NO_OPENSSL - void sslErrors(const QList<QSslError> &errors); + void sslErrors(QNetworkReply*,const QList<QSslError> &errors); #endif private: @@ -85,7 +90,9 @@ private: QPushButton *quitButton; QDialogButtonBox *buttonBox; - QHttp *http; + QUrl url; + QNetworkAccessManager qnam; + QNetworkReply *reply; QFile *file; int httpGetId; bool httpRequestAborted; diff --git a/examples/network/http/main.cpp b/examples/network/http/main.cpp index ecbe100..817b2be 100644 --- a/examples/network/http/main.cpp +++ b/examples/network/http/main.cpp @@ -46,7 +46,6 @@ int main(int argc, char *argv[]) { QApplication app(argc, argv); - qWarning("The usage of QHttp is not recommended anymore, please use QNetworkAccessManager."); HttpWindow httpWin; httpWin.show(); return httpWin.exec(); diff --git a/examples/network/loopback/dialog.cpp b/examples/network/loopback/dialog.cpp index 27cff31..b504e36 100644 --- a/examples/network/loopback/dialog.cpp +++ b/examples/network/loopback/dialog.cpp @@ -44,12 +44,12 @@ #include "dialog.h" -#if !defined(Q_OS_WINCE) +#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN) static const int TotalBytes = 50 * 1024 * 1024; #else static const int TotalBytes = 5 * 1024 * 1024; #endif -static const int PayloadSize = 65536; +static const int PayloadSize = 64 * 1024; // 64 KB Dialog::Dialog(QWidget *parent) : QDialog(parent) @@ -130,6 +130,7 @@ void Dialog::acceptConnection() void Dialog::startTransfer() { + // called when the TCP client connected to the loopback server bytesToWrite = TotalBytes - (int)tcpClient.write(QByteArray(PayloadSize, '@')); clientStatusLabel->setText(tr("Connected")); } @@ -155,8 +156,11 @@ void Dialog::updateServerProgress() void Dialog::updateClientProgress(qint64 numBytes) { + // callen when the TCP client has written some bytes bytesWritten += (int)numBytes; - if (bytesToWrite > 0) + + // only write more if not finished and when the Qt write buffer is below a certain size. + if (bytesToWrite > 0 && tcpClient.bytesToWrite() <= 4*PayloadSize) bytesToWrite -= (int)tcpClient.write(QByteArray(qMin(bytesToWrite, PayloadSize), '@')); clientProgressBar->setMaximum(TotalBytes); |